donkeymedia

If you let your users set their Links in WordPress with TinyMCE editor, you might run into some validation Problem, because target=”_blank” is part of the XHTML-Strict Standard. To remove the Options in TinyMCE you need to edit two Files: in wp-includes/js/tinymce/themes/advanced/link.htm remove the Table Row offering the Link Target:

<tr>
<td><label id="targetlistlabel" for="targetlist">{#advanced_dlg.link_target}</label></td>
<td><select id="target_list" name="target_list"></select></td>
</tr>

in wp-includes/js/tinymce/themes/advanced/js/link.js comment out the the call to fillTargetList() in the init-function. If you still want to open external Links in new Windows (or Tabs) you can use this Little Javascript. Links to different Domains will be opened in a new Window.

/** Creating custom :external selector **/
  $.expr[':'].external = function(obj){
      return !obj.href.match(/^mailto\:/)
              && (obj.hostname != location.hostname);
  };
  // Add 'external' CSS class to all external links
  $('a:external').bind( 'click', function(){
      open(this.href);
      return false;
  });

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